Browning 3693991 Qd Bushed V Belt Sheave 2 Groove 7.08in

Product Description

The BROWNING 3693991 is a two-groove, Quick Detachable (QD) bushed V-belt sheave designed for use in belt-driven mechanical systems including HVAC air handlers, blowers, cooling towers, and industrial drive applications. Constructed from iron, the sheave accepts B-style bushing and accommodates bore diameters from 0.625 inches up to 2.25 inches, allowing flexible shaft fitment across a range of equipment. The outside diameter measures 7.08 inches, with a belt pitch diameter of 6.9 inches for 5V belts. It is sized for 5V, A, and B belt trade sizes, making it a versatile component for multi-drive configurations in commercial and light industrial mechanical systems.

This sheave is suited for residential and commercial HVAC blower assemblies, pump drives, fan decks, and other belt-drive applications where a QD-style hub mount is required. The two-groove design supports parallel belt configurations that distribute load and reduce belt slip under variable torque conditions. HVAC technicians and millwrights commonly install this component as an OEM-style replacement or during drive system upgrades requiring adjustable bore sizing.

Key Features

• Two-groove design supports dual V-belt drive configurations for improved load distribution
• QD bushing system allows fast, secure shaft mounting and removal without special tooling
• Accepts bore diameters from 0.625 inches to 2.25 inches for broad shaft compatibility
• Compatible with 5V, A, and B belt trade sizes for flexible application use
• Iron construction provides durability in continuous-duty belt drive environments
• 7.08 inch outside diameter with 6.9 inch belt pitch diameter for 5V belts

Compatibility

Designed for use with 5V, A, and B trade-size V-belts. Accepts B-style QD bushing. Suitable as an OEM-style replacement or aftermarket sheave in belt-driven blower, fan, and pump drive systems requiring a two-groove QD sheave with a 7.08 inch outside diameter.

Installation Notes

Installation should be performed by a qualified HVAC technician or millwright. Disconnect and lock out all power to the driven equipment before removing or installing the sheave. Verify shaft diameter falls within the 0.625 inch to 2.25 inch bore range before selecting a QD bushing. After installation, confirm belt tension and sheave alignment with a straightedge before returning the system to service.